linux-kernel - Re: noisy selinux messages on tmpfs mount.

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Message-ID: <1420837263.31986.0.camel@gmail.com>
Date:	Fri, 09 Jan 2015 22:01:03 +0100
From:	Dominick Grift <dac.override@...il.com>
To:	Paul Moore <pmoore@...hat.com>
Cc:	Dave Jones <davej@...emonkey.org.uk>,
	Stephen Smalley <sds@...ch.ncsc.mil>,
	James Morris <james.l.morris@...cle.com>,
	selinux <selinux@...ho.nsa.gov>,
	Linux Kernel <linux-kernel@...r.kernel.org>
Subject: Re: noisy selinux messages on tmpfs mount.

On Fri, 2015-01-09 at 15:55 -0500, Paul Moore wrote:
> On Friday, January 09, 2015 02:13:29 PM Dave Jones wrote:
> > On Fri, Jan 09, 2015 at 08:06:49AM -0500, Stephen Smalley wrote:
> >  > We already reduced that message to KERN_DEBUG.  Is that not sufficient?
> > 
> > That doesn't really help with the flooding of dmesg, so no.
> > I should also note that it's not just logging in that creates a new
> > session, it also seems to be getting triggered by cron jobs, or
> > whatever the systemd replacement is.
> 
> I wonder if this is cron/systemd/whatever creating a new namespace and 
> mounting a new tmpfs in the namespace?  If yes, I wonder if we could limit the 
> messages to the initial namespace ... ?
> 

It is systemd logind creating sessions (e.g. creating /run/user/$UID and
mounting a tmpfs on it)




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